'Some learners appear to regard learning itself as learnable. They believe that, through effort, their minds can get bigger and stronger, just as their bodies can. They see learning as a lifelong process, and gain pleasure and self-esteem from expanding their ability to learn. Having to try is experienced positively: it’s when you are trying that your ‘learning muscles’ are being exercised. Changing and learning include a sense of getting better at learning over time, and of growing, changing and adapting as a learner through the whole of life. There is a sense of history and hope. The opposite of changing and learning is being stuck and static. Other learners appear to believe that the ability to learn is fixed. They therefore experience difficulty negatively, as revealing their limitations. They are less likely to see challenging situations as opportunities to become a better learner.' (Crick, 2007, p140)